mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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94 lines
No EOL
1.8 KiB
C
94 lines
No EOL
1.8 KiB
C
/** Override a value of the sample with a header, timestamp or statistic value.
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
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*********************************************************************************/
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/** @addtogroup hooks Hook functions
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* @{
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*/
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#include "plugin.h"
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#include "mapping.h"
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#include "list.h"
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#include "utils.h"
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#include "path.h"
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struct map {
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struct mapping mapping;
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struct stats *stats;
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};
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static int map_init(struct hook *h)
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{
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struct map *p = h->_vd;
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return mapping_init(&p->mapping);
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}
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static int map_destroy(struct hook *h)
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{
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struct map *p = h->_vd;
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return mapping_destroy(&p->mapping);
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}
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static int map_parse(struct hook *h, config_setting_t *cfg)
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{
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int ret;
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struct map *p = h->_vd;
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config_setting_t *cfg_mapping;
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cfg_mapping = config_setting_lookup(cfg, "mapping");
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if (!cfg_mapping || !config_setting_is_array(cfg_mapping))
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return -1;
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ret = mapping_parse(&p->mapping, cfg_mapping);
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if (ret)
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return ret;
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return 0;
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}
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static int map_read(struct hook *h, struct sample *smps[], size_t *cnt)
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{
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int ret;
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struct map *p = h->_vd;
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struct sample *tmp[*cnt];
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if (*cnt <= 0)
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return 0;
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ret = sample_alloc(smps[0]->pool, tmp, *cnt);
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if (ret != *cnt)
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return ret;
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for (int i = 0; i < *cnt; i++) {
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mapping_remap(&p->mapping, smps[i], tmp[i], NULL);
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SWAP(smps[i], tmp[i]);
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}
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sample_free(tmp, *cnt);
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return 0;
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}
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static struct plugin p = {
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.name = "map",
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.description = "Remap values and / or add header, timestamp values to the sample",
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.type = PLUGIN_TYPE_HOOK,
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.hook = {
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.priority = 99,
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.init = map_init,
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.destroy= map_destroy,
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.parse = map_parse,
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.read = map_read,
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.size = sizeof(struct map)
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}
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};
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REGISTER_PLUGIN(&p);
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/** @} */ |